package com.design.principle.simpleresponsibility;

/**
 * @auther LiZiBa
 * @date 2020/8/2 10:59
 * @description: 两个职责混在一起
 **/
public interface ICourse {

    // 展示职责
    String getCourseName();
    byte[] getCourseVodie();

    // 权限职责
    void studyCourse();
    void refundCourse();
}
